Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 1999.11a
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- Pages.1123-1126
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- 1999
Implemention of the Real-time MPEG Layer III Audio Decoder
MPEG 계층 III 오디오 복호기 실시간 구현에 관한 연구
Abstract
In this paper, we propose a real-time implementation of the MPEG-1 layer III and MPEG-2 layer III LSF audio decoding system based on OAK DSP Core. In order to solve the problem of resolution, the system has been used floating-point operation and double precision in dequantization module. The size of ROM is reduced by using the Run-length algorithm of reordered index. The subband synthesis filter module is optimized to have low computational complexity in terms of the size of ROM or RAM. To construct a efficient system, we used both the DSP Core and Parser-Huffman decoder which is implemented with VHDL.
Keywords